Double Hung Aluminum Window

The 5800 Double Hung window was tested to be used in sizes up to
60"x 99". The air infiltration rate is an amazing .03! This window
features a 4 5/16" frame, block and tackle balances with an
ultra-lift option, 1" insulated glass, and tilt sash operation.
Both sashes operate and automatically lock into position when
closed. Standard options include nail fins, panning, and two
anodized finishes.

Thermal Bar Break System: 4 5/16" frame depth with a thermal bar
break system used to enhance the thermal values of the frame and
sash.

Frame & Sash Corners: All frame and sash corners use
polyethylene gaskets for tighter air and water seals.

Flush Mount Tilt Latches: We use attractive flush mount tilt
latches, allowing both sashes to tilt in for easy cleaning and
removal.

Spring-Loaded Sill Locks: The lower sash uses an automatic latching
system with the use of spring- loaded sill locks. This eliminates
the need for cam locks and offers instant security when the window
is closed.

Self-latching Locks: Self-latching locks at the head keep the top
sash from dropping down while operating the lower sash. The top
sash is fully functional and can be operated or tilted in for
cleaning.

Sloped Sill: The double hung incorporates a sloped sill that
eliminates the need for weeps under the sash. This allows for
superior water drainage.

Window Balances: These are available in Class 1 or Class 5 options.
Class 1 balances lift 30% of the sash weight while Class 5 lifts
70% of the sash weight.

Balance Shoes: Balance shoes easily release the sash after tilting
in to 90 degrees. This eliminates the need to raise one balance
higher than the other during removal, thus making removal easier.

Sash Interlock: The upper and lower sashes interlock together,
which helps reduce deflection and creates a snug fit for a superior
air infiltration rate.

Weatherstripping: The double hung sash and frame have multiple
weatherstrip locations uniquely positioned so that weatherstripping
is never disconnected, which results in outstanding air
infiltration performance.

Screen: The full length screen has an extruded frame for superior
durability over rolled form. The screen fits cleanly inside the
main frame for protecti